/*
 * Copyright 2007-2010 Jeremy Brown.
 *
 * Licensed under the Apache License, Version 2.0 (the "License")
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @author <a href="http://jeremy-brown.com">Jeremy Brown</a>
 */

package groovy.prefuse.impl.visual.sort

import prefuse.visual.*
import prefuse.visual.sort.*

class ClosureItemSorter extends ItemSorter
{
	Closure closure
	
	public ClosureItemSorter(Closure c)
	{
		closure = c
	}
	
	public int score(VisualItem item)
	{
		//This gets the parent ItemSort.score(item) score and passes it and item into the closure
		int score = super.score(item)
		def maxParams = closure.getMaximumNumberOfParameters()
		if(maxParams == 0)
		{
			score = closure.call()
		}
		else if(maxParams == 1)
		{
			score = closure.call(item)
		}
		else
		{
			score = closure.call(item, score)
		}
		return score
	}
}